This is not just a matter of simple justice (although it is that, too). It is also a matter of efficiency.

这不仅是一个公平问题(尽管它也是)，还是一个效率问题。

youdao

"The South asks for justice, simple justice, and less she ought not to take.

VOA: special.2009.03.26

This emphasis, Stuntz thinks, has led to the current mess, where accused criminals get laboriously articulated protection against procedural errors and no protection at all against outrageous and obvious violations of simple justice.

NEWYORKER: The Caging of America

This is a matter of simple justice.

CNN: Senators Make Remarks After S.F.R.C. Meeting

But for Toyota, for common sense, and for simple justice, the most egregious and outrageous lawsuits must be those solicited by class action lawyers to make Toyota compensate owners of Toyota vehicles who claim to have suffered losses on the trade-in or resale value of their cars due to the alleged quality issues and recalls in 2009-2010.

FORBES: The Toyota Class Action Settlement and Economic Justice in America's "Mixed" Economy